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4. In Figures 130, 131 and 132 in the 2003 AHR, no field measurements for conductivity and <br />temperature were taken for wells DD-NM4x98-27, 28 and 29, even though the wells were <br />experiencing artesian flow. Please explain. <br />5. In the 2003 AHR, hole problems were noted for wells DH-16, DH-25 and DH-58a. What are <br />BRL's intentions with these wells as they relate to future hydrologic monitoring ? <br />6. As shown in Figure 155 of the 2003 AHR, no lab samples were analyzed for alluvial well AW-2, <br />although water was found in the well on three occasions. Please explain. <br />7. The graph in Figure 142 for well DH-49 shows a continual increase in conductivity since 1998, <br />culminating in readings at or above 4000 umhos/cm. Since this well monitors the overburden <br />above the D-seam, please discuss the possibility that this increase in conductivity is indicative of <br />contamination of the overlying small perched aquifer ? <br />8. The Division does not have a completion diagram for well DH-58. Please provide a copy. <br />9. In Figure 143 for well DH-58, there was a lazge increase, on the order of 24 times, in the carbonate <br />concentration in 2003 as compazed to the baseline values and the previous years' operational <br />values. Please discuss whether this lazge increase in the carbonate concentration indicates a <br />problem with the cement seal in this well. <br />10. Two of the Terror Creek monitoring wells, TC-03-O1 and TC-03-02, appear to have high <br />concentrations of carbonate, as shown in Figure 149 and Figure 151. Please discuss the possibility <br />of failure of the cement seals in these two wells. <br />2003 Annual Mine Inflow Report <br />The Division has no concerns or questions with this report. During 2003, the actual water consumption at <br />the Bowie No. 2 Mine was less than the estimated water consumption stated in the permit application. The <br />average mine inflow rate was also in line with what was predicted. <br />2003 Bi-Annual Subsidence Resort <br />The Division has no questions concerning this report. As noted in the report, the observed maximum <br />subsidence was less than that predicted. <br />Tf you have any questions, please call me. <br />Sincerel ((, <br />ose h J.1Hu~ <br />Environmental Protection Specialist <br />cc: Jim Stover P.E. (J.E. Stover & Associates) <br />c:\word\bowie2\2003 anrptadeq 1 <br />